You are banned from this server- You have a host listed in the ircbl.ahbl.org blacklist. Please see: http://www.ahbl.org/ for more information.

what the hell does that mean? it says my IP is listed on the blacklist?

That someone has been using that IP to do bad things(tm). If you have dynamic IP, restart your PC or router to get a new IP, then it should hopefully work. If you have static IP, I guess it's time to scan for spyware, virusses and root-kits

You are banned from this server- You have a host listed in the ircbl.ahbl.org blacklist. Please see: http://www.ahbl.org/ for more information.

what the hell does that mean? it says my IP is listed on the blacklist?

That someone has been using that IP to do bad things(tm). If you have dynamic IP, restart your PC or router to get a new IP, then it should hopefully work. If you have static IP, I guess it's time to scan for spyware, virusses and root-kits

Sometimes too even if you have a dynamic IP your entire ISP can end up getting banned if a service subscriber from your ISP keeps causing persistent trouble reseting his dynamic IP to get around a ban. It's happened to me before where an IRC server has banned all sympatico accounts because of the actions of one jackass. Such bans rarely last longer than a week because they tend to affect a lot of innocent people and most IRC servers are reluctant to impose a complete ISP ban because of that reason. So whoever was misbehaving must have really been acting like a class-A douche.